Merge remote-tracking branch 'origin/develop' into HEAD

1 files changed, 86 insertions, 0 deletions

diff --git a/lib/leap_cli/commands/db.rb b/lib/leap_cli/commands/db.rb
new file mode 100644
index 00000000..5307ac4d
--- /dev/null
+++ b/lib/leap_cli/commands/db.rb
@@ -0,0 +1,86 @@
+module LeapCli; module Commands
+
+  desc 'Database commands.'
+  command :db do |db|
+    db.desc 'Destroy one or more databases. If present, limit to FILTER nodes. For example `leap db destroy --db sessions,tokens testing`.'
+    db.arg_name 'FILTER', :optional => true
+    db.command :destroy do |destroy|
+      destroy.flag :db, :arg_name => "DATABASES", :desc => 'Comma separated list of databases to destroy (no space). Use "--db all" to destroy all databases.', :optional => true
+      destroy.flag :user, :arg_name => "USERS", :desc => 'Comma separated list of usernames. The storage databases for these user(s) will be destroyed.', :optional => true
+      destroy.action do |global_options,options,args|
+        dbs = (options[:db]||"").split(',')
+        users = (options[:user]||"").split(',')
+        if dbs.empty? && users.empty?
+          bail!('Either --db or --user is required.')
+        end
+        nodes = manager.filter(args)
+        if nodes.any?
+          nodes = nodes[:services => 'couchdb']
+        end
+        unless nodes.any?
+          bail! 'No db nodes selected.'
+        end
+        if users.any?
+          unless global_options[:yes]
+            say 'You are about to permanently destroy user databases for [%s] for nodes [%s].' % [users.join(', '), nodes.keys.join(', ')]
+            bail! unless agree("Continue? ")
+          end
+          destroy_user_dbs(nodes, users)
+        elsif dbs.any?
+          unless global_options[:yes]
+            if dbs.include?('all')
+              say 'You are about to permanently destroy all database data for nodes [%s].' % nodes.keys.join(', ')
+            else
+              say 'You are about to permanently destroy databases [%s] for nodes [%s].' % [dbs.join(', '), nodes.keys.join(', ')]
+            end
+            bail! unless agree("Continue? ")
+          end
+          if dbs.include?('all')
+            destroy_all_dbs(nodes)
+          else
+            destroy_dbs(nodes, dbs)
+          end
+          say 'You must run `leap deploy` in order to create the databases again.'
+        end
+      end
+    end
+  end
+
+  private
+
+  def destroy_all_dbs(nodes)
+    ssh_connect(nodes) do |ssh|
+      ssh.run('/etc/init.d/bigcouch stop && test ! -z "$(ls /opt/bigcouch/var/lib/ 2> /dev/null)" && rm -r /opt/bigcouch/var/lib/* && echo "All DBs destroyed" || echo "DBs already destroyed"')
+    end
+  end
+
+  def destroy_dbs(nodes, dbs)
+    nodes.each_node do |node|
+      ssh_connect(node) do |ssh|
+        dbs.each do |db|
+          ssh.run(DESTROY_DB_COMMAND % {:db => db})
+        end
+      end
+    end
+  end
+
+  def destroy_user_dbs(nodes, users)
+    nodes.each_node do |node|
+      ssh_connect(node) do |ssh|
+        users.each do |user|
+          ssh.run(DESTROY_USER_DB_COMMAND % {:user => user})
+        end
+      end
+    end
+  end
+
+  DESTROY_DB_COMMAND = %{
+if [ 200 = `curl -ns -w "%%{http_code}" -X GET "127.0.0.1:5984/%{db}" -o /dev/null` ]; then
+  echo "Result from DELETE /%{db}:" `curl -ns -X DELETE "127.0.0.1:5984/%{db}"`;
+else
+  echo "Skipping db '%{db}': it does not exist or has already been deleted.";
+fi
+}
+
+  DESTROY_USER_DB_COMMAND = %{/srv/leap/couchdb/scripts/destroy-user-db --username %{user}}
+end; end